CCTV Camera and it's a part is HD Security Surveillance cameras, also known as HD security camera, are capable of capturing video surveillance footage at 1080pixel resolution (1920 x 1080 pixels). These high definition surveillance cameras must be used with an HD-SDI surveillance DVR. Gctlsecurity is now offering complete HD Security Surveillance Camera systems here that include a DVR, cables, connectors, and power supplies and more other related all types of equipment. These new systems based on the latest AHD CCTV technology. We provide CCTV Camera Solution service all over Bangladesh.HD Security Surveillance cameras, also known as HD security camera, are capable of capturing video surveillance footage at 1080pixel resolution (1920 x 1080 pixels). These high definition surveillance cameras must be used with an HD-SDI surveillance DVR. gctl security is now offering complete HD Security Surveillance Camera systems here that include a DVR, cables, connectors, and power supplies and more other related all types of equipment. These new systems based on the latest AHD CCTV technology. We provide service all over Bangladesh.